Method for measuring tension state of a material and uses thereof

摘要

Method to determine the tension condition of a material at a given time, comprising one step during which one calculates the value of at least one parameter extracted from the ultrasonic signal received after propagation of an ultrasonic wave transmitted in said material between an ultrasound source and at least one ultrasound transmitter situated at a fixed predetermined distance from said source, the value of the parameter(s) varying with the tension condition of the material, said variation of the parameter(s) being proportional or reversely proportional to the variation in the tension condition of said material.